Audio speaker



FIG. 1 is a front perspective view of an audio speaker showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left-side view thereof;

FIG. 5 is a right-side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a left-side view of a central unit of the audio speaker wherein the central unit is enlarged and the broken lines are removed for illustrative purposes only.

The broken lines are for environmental purposes only and form no part of the claimed design. 

CLAIM The ornamental design for an audio speaker, as shown and described. 